Lesson 3

Are You Ready?

Complete these questions. If you experience difficulty and need help, visit Refresher or contact your teacher.

1. What is a perfect square trinomial? How do you know if a trinomial is a perfect square trinomial? Answer
   
   
2. Factor each perfect square trinomial.
   
   
   1. x2 + 6x + 9 Answer
      
      
   2. 4x2 − 20x + 25 Answer
      
      
   3. 4x2 + 16x + 16 Answer
      
      
3. Convert the following quadratic functions into vertex form by completing the square.
   
   
   1. y = x2 + 6x + 8 Answer
      
      
   2. y = 3x2 + 12x + 5 Answer
      
      
   3. y = −2x2 + 3x − 2 Answer
      
      
4. Write each radical in simplest form.
   
   
   1. Answer
      
      
   2. Answer
      
      
   3. Answer

How did the questions go? If you feel comfortable with the concepts covered in the questions, skip forward to Discover. If you experienced difficulties, use the resources in Refresher to review these important concepts before continuing through the lesson.